package com.base.hashmap;

import java.util.HashMap;
import java.util.Map;

public class HashMapTest {

	public static void main(String[] args) {
		
		Map<String, String> map = new HashMap<>();
		map.put("1","val1");
		String put = map.put("1","val2");
		System.out.println(put);
		
		
	}
	
}
